Avistar C3 Media EngineTM Debuts at InfoComm09

Revolutionary Software Component Brings Visual Communications to Any Application

See the Avistar C3 Media Engine in Action at InfoComm09, Booth #3675
ORLANDO, Fla.--(Business Wire)--
Avistar Communications Corp. (Nasdaq:AVSR), a leader in unified visual
communications solutions, today announced the Avistar C3 Media Engine, the
latest component from its award-winning Avistar C3 platform. This component
addresses a key need among the technology community: how to best integrate high
quality, scalable video and audio conferencing as part of the unified
communications experience on the desktop, while seamlessly enabling any software
application or web page with reliable, scalable and more importantly, valuable
visual communications.

Stephen Epstein, Chief Marketing Officer, Avistar, said, "Many application
vendors and unified communications companies want to move to the next level of
integrating desktop videoconferencing into their solutions. But with the current
offerings in the market, they would need to change their software platform
significantly in order to integrate a reliable visual communications experience
within their applications. The Avistar C3 Media Engine equips companies with a
plug-in that gives them a rich, high quality media experience and visual
communication capability, and the flexibility they need to embed it quickly and
effectively."

This revolutionary component can be embedded quickly and seamlessly. As part of
Avistar`s "Visual Insights" program, which enables application vendors to embed
their software applications with visual communications in a matter of days,
companies can promote their brand while enhancing the value of their products in
the market. Their customers can experience high quality integrated audio and
video conferencing delivered seamlessly from their product. This is a huge step
to realizing "unified communications": content, information and communications
all in one.

Avistar`s "Prove Before You Purchase" License Credit Program is available to
application vendors who want to experience a new level of visual communications
and can greatly expand the value of their current software offerings while using
integration costs as a credit against future product licenses*.

Several companies have already licensed the Avistar C3 Media Engine. Silicon
Valley-based Zultys, Inc., a leading provider of all-in-one unified
communication solutions, is embedding Avistar C3 Media Engine into its line of
VoIP products.

According to Steve Morrison, vice president, product marketing, Zultys,
"Videoconferencing provides the ROI our customers look for as part of their
unified communications solutions, especially in a down economy, where travel is
well scrutinized. The Avistar C3 Media Engine has enabled us to respond with
desktop videoconferencing quickly in this market, empowering our customers to
collaborate and take aggressive action to remain competitive."

Avistar C3 Media Engine and Avistar C3 Standalone Edition

The Avistar C3 Media Engine enables technology partners to easily and quickly
embed rich video and audio conferencing within their applications without
replacing their existing communications and collaborations platforms. Core
functionality such as establishing a video or audio call and performing
transrating and transcoding tasks are now provided in a componentized piece of
technology that ensures high connectivity, reliability, audio and video
synchronization-all working in unison via a simple plug-in.

For those partners who want to integrate videoconferencing alongside their
applications, Avistar also offers the Avistar C3 Desktop Standalone Edition that
provides a standard graphical user interface that is simple to navigate from the
desktop and leverages current technology investments. The Avistar C3 Desktop
Standalone Edition delivers high definition and advanced features such as SIP
registration, firewall traversal, integrated contact directory, acoustic echo
cancelation, full screen mode and an intuitive user interface.

Both the Avistar C3 Media Engine and Avistar C3 Desktop Standalone Edition
provide a PC-based, videoconferencing solution with a consistent, high quality
user experience. Interoperable with both existing room and video
infrastructures, they feature advanced visual communications capabilities and a
standard, high definition user interface that enables one click calling and
connections. They provide quick, simple, reliable and scalable desktop
videoconferencing out of the box.

*Terms & Conditions Apply

About Avistar Communications Corporation

Avistar (Nasdaq:AVSR) is an innovation leader in the unified visual
communications industry, providing proven business-class desktop
videoconferencing technology. Avistar's installations include more than 100,000
committed desktop seats worldwide, bringing together business users anytime and
anyplace. Companies such as IBM, LifeSize, Logitech, Polycom and Sony use
Avistar technology to power their unified communications solutions. Avistar also
works with leading channel partners and resellers including AVI-SPL, CityIS,
ESCO, Fontel, Datamart and Jenne in more than 40 countries. For more
information, please visit www.avistar.com.

Avistar
Angela Smith, +1-650-525-3388
asmith@avistar.com
or
Birnbach Communications for Avistar
Margaret Bonilla, +1-603-548-0693
mbonilla@birnbachcom.com

Copyright Business Wire 2009